Behavioral Experiment

Behavioral Experiment

Test what anxiety predicts

0 ratings
Free

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Released
September 15, 2026
Updated
October 6, 2026
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About

Anxious thoughts make confident predictions. I will freeze. They will notice. I won’t cope. Behavioral Experiment gives you a way to check a prediction like that against what really happens, instead of taking the thought’s word for it. It’s for anyone working on anxiety, worry, or avoidance, on your own or with a therapist. Behavioral experiments are one of the core methods of cognitive behavioral therapy, and the app guides you through one in four steps. You start by writing the worry as a belief and rating how true it feels. Then you plan a test. You pick a situation that would put the belief to the test, say what you expect to happen in terms you could see or count, and decide which safety behaviors to leave out, the small precautions that feel helpful but keep you from finding out. A plan can have a date and time, or it can wait until the situation comes up. While it’s happening, one screen holds your plan, your prediction, and the safety behaviors you’re leaving out, with room for a few notes that carry into the review. Afterward you record what happened, see it next to what you predicted, and rate the belief again. If you write down a next step, Plan this turns it into the next experiment. When something feels too big to attempt, build a step ladder. Break the goal into rungs rated for expected distress, plan any rung as its own experiment, and move up when a rung feels solid enough. Nine short articles with references explain the ideas behind the method, from how anxiety works and the cycle of avoidance to safety behaviors, predictions, and ladders. Each step has plain guidance and a finished example you can open and read. If you see a therapist, flag experiments to talk about and share a session summary as a PDF, or copy any belief or experiment as text. Reminders are optional and say only that it’s time, or that it’s coming up and when, unless you choose to show your plan in them. On iOS 18 and later, add Record an experiment to Control Center to write down something that just happened while it’s fresh. Free, with no ads, no accounts, and no tracking. Everything you write stays on your device. Turn on iCloud sync to see it on your other devices, lock the app with Face ID, Touch ID, or your passcode, and delete everything whenever you like. Nothing is ever sent to us. In English and Spanish, with ratings from 0 to 100 or 0 to 10. Behavioral Experiment is a guided worksheet with educational articles. It is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. It is not therapy or medical care, it is not for emergencies, and using it does not create a professional relationship with us. For medical advice, diagnosis, or treatment, talk with a healthcare professional. If you work with a therapist, plan experiments with them. You decide whether to do any experiment, and you do it at your own risk.
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What's New in Behavioral Experiment

1.0.1

October 6, 2026

A new look and a clearer path through each experiment, in four steps: name the belief, plan the test, do it, and review what happened. Plans can now wait for a situation instead of a date, and the app can check in on the days and at the time you choose until it comes up. Each reminder can come at the experiment’s time, earlier, or at a time you pick. Reminders say only that it’s time, or that it’s coming up and when, unless you turn on Show my plan in reminders in Settings. When you write a next step in a review, Plan this turns it into your next experiment. Your latest line to keep now shows on the belief page. Flag an experiment for your next session, copy a belief or experiment as text, and share a finished experiment as a PDF. On iOS 18 and later, add Record an experiment to Control Center. Ratings start blank, and Settings has a 0 to 10 scale if you prefer it. You can switch between English and Spanish in Settings. Delete everything now removes the iCloud copy too, and iCloud sync is more reliable.

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